Constraints on the Brans-Dicke gravity theory with the Planck data

	Constraints on the Brans-Dicke gravity theory with the Planck data
	Li, Yi-Chao1,2 ; Wu, Feng-Quan1 ; Chen, Xuelei1,3
刊名	PHYSICAL REVIEW D
	2013-10-29
卷号	88 期号:8
英文摘要	Based on the new cosmic microwave background temperature data from the Planck satellite, the nineyear polarization data from the Wilkinson Microwave Anisotropy Probe, and the baryon acoustic oscillation distance ratio data from the Sloan Digital Sky Survey and Six-Degree-Field surveys, we place a new constraint on the Brans-Dicke theory. We adopt a parametrization zeta = ln (1 + 1/omega), where the general relativity limit corresponds to zeta = 0. We find no evidence of deviation from general relativity. At 95% probability,-0.00246 < zeta < 0.00567; correspondingly, the region-407.0 0 ( i. e., omega> 0) case, then the 95% probability interval is zeta < 0.00549, corresponding to omega> 181.65. We can also translate this result to a constraint on the variation of the gravitational constant and find the variation rate today as G =-1.42(-2.27)(+2.48) Chi 10-(13) yr(-1) (1 sigma error bar); the integrated change since the epoch of recombination is delta G/G = 0.0104(-0.0067)(+0.0186)(1 sigma error bar). These limits on the variation of the gravitational constant are comparable with the precision of Solar System experiments.
收录类别	SCI
语种	英语
WOS记录号	WOS:000326275800001
内容类型	期刊论文
源URL	[http://ir.bao.ac.cn/handle/114a11/6047]
专题	国家天文台_星系宇宙学研究部
作者单位	1.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Peking Univ, Ctr High Energy Phys, Beijing 100871, Peoples R China
推荐引用方式 GB/T 7714	Li, Yi-Chao,Wu, Feng-Quan,Chen, Xuelei. Constraints on the Brans-Dicke gravity theory with the Planck data[J]. PHYSICAL REVIEW D,2013,88(8).
APA	Li, Yi-Chao,Wu, Feng-Quan,&Chen, Xuelei.(2013).Constraints on the Brans-Dicke gravity theory with the Planck data.PHYSICAL REVIEW D,88(8).
MLA	Li, Yi-Chao,et al."Constraints on the Brans-Dicke gravity theory with the Planck data".PHYSICAL REVIEW D 88.8(2013).